EP0312424A2 - Verfahren zum Installieren von Kabeln - Google Patents
Verfahren zum Installieren von Kabeln Download PDFInfo
- Publication number
- EP0312424A2 EP0312424A2 EP88402486A EP88402486A EP0312424A2 EP 0312424 A2 EP0312424 A2 EP 0312424A2 EP 88402486 A EP88402486 A EP 88402486A EP 88402486 A EP88402486 A EP 88402486A EP 0312424 A2 EP0312424 A2 EP 0312424A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- cable
- screens
- stress cone
- screen
- cables
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 8
- 238000009434 installation Methods 0.000 title description 5
- 239000004020 conductor Substances 0.000 claims description 10
- 239000012774 insulation material Substances 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 2
- 238000009413 insulation Methods 0.000 description 6
- 239000004703 cross-linked polyethylene Substances 0.000 description 3
- 229920003020 cross-linked polyethylene Polymers 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/08—Cable junctions
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/08—Cable junctions
- H02G15/10—Cable junctions protected by boxes, e.g. by distribution, connection or junction boxes
- H02G15/103—Cable junctions protected by boxes, e.g. by distribution, connection or junction boxes with devices for relieving electrical stress
- H02G15/105—Cable junctions protected by boxes, e.g. by distribution, connection or junction boxes with devices for relieving electrical stress connected to the cable shield only
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/08—Cable junctions
- H02G15/10—Cable junctions protected by boxes, e.g. by distribution, connection or junction boxes
- H02G15/103—Cable junctions protected by boxes, e.g. by distribution, connection or junction boxes with devices for relieving electrical stress
- H02G15/105—Cable junctions protected by boxes, e.g. by distribution, connection or junction boxes with devices for relieving electrical stress connected to the cable shield only
- H02G15/1055—Cable junctions protected by boxes, e.g. by distribution, connection or junction boxes with devices for relieving electrical stress connected to the cable shield only with cross-bonding of cable shields
Definitions
- the present invention relates to a method for installation of high-voltage power-cables and in particular to a method for sectionalizing the outer screens on single core cables.
- the currents or electromotive forces which are induced in the sheaths and screens of the three single core cables making up a three-phase cable installation can be untolerably high, but they can be eliminated by dividing the screens into isolated sections and crossbonding them. So far, the screen interruptions have always been made at the same site as the cable joints.
- the screens are crossbonded at the interruption sites and the screens are usually grounded for every third cable section.
- the object of the present invention is to provide a sectionalizing and crossbonding system which makes use of a double stress cone system, but which does not involve the risk of forming gas pockets in the interface between the applied XLPE insulation and the stress cone.
- Fig. 1 is illustrated a joint between two XLPE-cables 1 and 2, each having a conductor 3 and 4 and a layer or layers of XLPE-insulation 5 and 6 as well as outer conductive or semiconductive screens 7 and 8.
- the conductors 3 and 4 are jointed at 9 and the XLPE-insulation is re-applied at 10.
- the two screens 7′ and 8′ are re-applied from the surface of the cables 1 and 2 over the re-applied XLPE-insulation material 10, to meet in double stress cone 11.
- the double stress cone 11 has two electrodes 12 and 13 which are molded into a piece of insulation material 14.
- the re-applied XLPE-insulation material may be cross-linked or vulcanized prior to or after application of the re-applied screens 7′ and 8′. After the vulcanizing process methane-gas will escape from the insulation material. This may, as mentioned, quite often result in gas pockets at the interface between the re-applied XLPE insulation and the double stress cone.
- Fig. 2 the two cables 1 and 2 each having insulated conductors with outer screens are jointed in nearly the same manner as described in connection with Fig. 1.
- the semiconducting or conducting screen 7 of cable 1 is terminated outside the conductor joint, whereas the re-applied semiconductor 8′ from the cable 2 is completed over the conductor joint area 24 and terminated in the same area as the screen of the cable 1.
- the two screens 7 and 8′ are terminated in contact with electrodes 20 and 21 which together with a molded piece of insulation material 22 makes a double stress cone 23.
- the re-applied insulation material 10 of an XLPE-joint is to be vulcanized or cross-linked, the methane gas is free to escape from the joint along the whole surface of the joint.
- this double stress cone system may be used also for other types of cables such as oil-filled cables and mass-impregnated power cables.
- the double stress cone may be made of an elastomeric material, whereas for example epoxy may be used for paper insulated oil filled cables.
- the molded stress cone ring 23 is placed over cable 1 before jointing of the cable core.
- the sectionalizing and crossbonding of the screen is to be made distant from a cable core joint, it will have to be flexible (including the electrodes), so that it can be expanded to a larger diameter than the cable.
- the expanded condition to about 1.4 times of the cable diameter it may be placed on a sleeve which can be pulled over the cable,- or the cable may be pulled through the sleeve at the position where the crossbonding is to take place.
- Figure 3 is illustrated a double stress cone 30 placed on a cable surface distant from cable core joints.
- the screen 7 of the cable 1 (or the screen 8 of the cable 2) is interrupted at a place required and the two screen ends are terminated in the double stress cone 30.
- the crossbonding itself is not shown.
Landscapes
- Cable Accessories (AREA)
- Processing Of Terminals (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
- Installation Of Indoor Wiring (AREA)
- Communication Cables (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Manufacturing Of Electric Cables (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Bridges Or Land Bridges (AREA)
- Insulated Conductors (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT88402486T ATE102760T1 (de) | 1987-10-13 | 1988-09-30 | Verfahren zum installieren von kabeln. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO874258 | 1987-10-13 | ||
NO874258A NO165007C (no) | 1987-10-13 | 1987-10-13 | Fremgangsmaate for seksjonering av de ytre skjermer paa en kraftkabel. |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0312424A2 true EP0312424A2 (de) | 1989-04-19 |
EP0312424A3 EP0312424A3 (en) | 1990-10-24 |
EP0312424B1 EP0312424B1 (de) | 1994-03-09 |
Family
ID=19890299
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP88402486A Expired - Lifetime EP0312424B1 (de) | 1987-10-13 | 1988-09-30 | Verfahren zum Installieren von Kabeln |
Country Status (9)
Country | Link |
---|---|
US (1) | US4855536A (de) |
EP (1) | EP0312424B1 (de) |
JP (1) | JPH0667085B2 (de) |
KR (1) | KR970005285B1 (de) |
AT (1) | ATE102760T1 (de) |
DE (1) | DE3888280T2 (de) |
DK (1) | DK166182C (de) |
ES (1) | ES2049759T3 (de) |
NO (1) | NO165007C (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4993600A (en) * | 1989-10-10 | 1991-02-19 | James River Corporation | Liquid dispenser pump |
EP0779692A1 (de) | 1995-12-13 | 1997-06-18 | Studer Draht-und Kabelwerk AG | Verfahren zum Erden einer Abschirmung eines elektrischen Kabels sowie elektrisches Kabel |
EP1128514A1 (de) * | 2000-02-23 | 2001-08-29 | NKT Power Cables A/S | Isolierte Kabelverbindung |
EP3128630A1 (de) * | 2015-08-04 | 2017-02-08 | Nexans | Verfahren zur elektrischen trennung der metallischen ummantelung eines hvdc-mi-kabels |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BR9709371A (pt) * | 1996-05-29 | 2000-01-11 | Asea Brow Boveri Ab | Condutor isolado para bobinas de alta voltagem e métodos para fabricar o mesmo. |
US6664474B1 (en) * | 2002-08-30 | 2003-12-16 | Andrew Corporation | Shield slot tap |
WO2006046089A1 (en) * | 2004-10-27 | 2006-05-04 | Prysmian Cavi E Sistemi Energia S.R.L. | Method and device for coating the junction area between at least two elongated elements in particular between electric cables |
JP6361191B2 (ja) | 2014-03-14 | 2018-07-25 | 日立化成株式会社 | 感光性樹脂組成物、感光性エレメント、レジストパターンの形成方法及びタッチパネルの製造方法 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE380835C (de) * | 1923-09-14 | Bergmann Elek Citaets Werke Ak | Kabel mit Bleimantel | |
GB342796A (en) * | 1929-11-12 | 1931-02-12 | Standard Telephones Cables Ltd | Method of insulating a high tension cable at a joint or terminal |
GB898762A (en) * | 1959-05-08 | 1962-06-14 | Pirelli | Improvements in or relating to casings for joints in single-core metal-sheathed electric power cables |
DE2939933B1 (de) * | 1979-09-28 | 1980-10-09 | Siemens Ag | Kabelgarnitur mit metallischem Gehaeuse |
US4283595A (en) * | 1976-06-25 | 1981-08-11 | Lackenbach, Lilling & Siegel | High voltage conductor terminal |
EP0286645B1 (de) * | 1986-05-07 | 1992-07-15 | Nkt A/S | Verfahren zum wiederherstellen von halbleitenden schichten um eine kabelverbindung herum und hülse zur verwendung bei der ausführung des verfahrens |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3800064A (en) * | 1972-09-28 | 1974-03-26 | Electric G Specialty Co | Universal power cable joint with closed-cell sponge stress relief element |
AU5349279A (en) * | 1978-12-18 | 1980-06-26 | Amerace Corporation | Splice connector housing |
FI69943C (fi) * | 1979-07-10 | 1986-05-26 | Sumitomo Electric Industries | Foerfarande foer bildande av en foerbindning foer en polyolefinisolerad elektrisk ledning eller kabel och vaermekrympande slang foer genomfoerande av foerfarandet |
JPS57135614A (en) * | 1981-02-12 | 1982-08-21 | Hitachi Cable | Method of isolating sheath circuit from cable |
JPS58165617A (ja) * | 1982-03-27 | 1983-09-30 | 株式会社フジクラ | 電力ケ−ブルの絶縁接続部 |
JPS59162709A (ja) * | 1983-03-07 | 1984-09-13 | 古河電気工業株式会社 | ゴム、プラスチツク絶縁電力ケ−ブルの絶縁接続部 |
-
1987
- 1987-10-13 NO NO874258A patent/NO165007C/no not_active IP Right Cessation
-
1988
- 1988-09-30 ES ES88402486T patent/ES2049759T3/es not_active Expired - Lifetime
- 1988-09-30 AT AT88402486T patent/ATE102760T1/de not_active IP Right Cessation
- 1988-09-30 DE DE3888280T patent/DE3888280T2/de not_active Expired - Fee Related
- 1988-09-30 EP EP88402486A patent/EP0312424B1/de not_active Expired - Lifetime
- 1988-10-11 US US07/256,773 patent/US4855536A/en not_active Expired - Fee Related
- 1988-10-12 JP JP63255043A patent/JPH0667085B2/ja not_active Expired - Lifetime
- 1988-10-12 DK DK568388A patent/DK166182C/da active
- 1988-10-13 KR KR1019880013358A patent/KR970005285B1/ko not_active IP Right Cessation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE380835C (de) * | 1923-09-14 | Bergmann Elek Citaets Werke Ak | Kabel mit Bleimantel | |
GB342796A (en) * | 1929-11-12 | 1931-02-12 | Standard Telephones Cables Ltd | Method of insulating a high tension cable at a joint or terminal |
GB898762A (en) * | 1959-05-08 | 1962-06-14 | Pirelli | Improvements in or relating to casings for joints in single-core metal-sheathed electric power cables |
US4283595A (en) * | 1976-06-25 | 1981-08-11 | Lackenbach, Lilling & Siegel | High voltage conductor terminal |
DE2939933B1 (de) * | 1979-09-28 | 1980-10-09 | Siemens Ag | Kabelgarnitur mit metallischem Gehaeuse |
EP0286645B1 (de) * | 1986-05-07 | 1992-07-15 | Nkt A/S | Verfahren zum wiederherstellen von halbleitenden schichten um eine kabelverbindung herum und hülse zur verwendung bei der ausführung des verfahrens |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4993600A (en) * | 1989-10-10 | 1991-02-19 | James River Corporation | Liquid dispenser pump |
EP0779692A1 (de) | 1995-12-13 | 1997-06-18 | Studer Draht-und Kabelwerk AG | Verfahren zum Erden einer Abschirmung eines elektrischen Kabels sowie elektrisches Kabel |
EP1128514A1 (de) * | 2000-02-23 | 2001-08-29 | NKT Power Cables A/S | Isolierte Kabelverbindung |
WO2001063719A1 (en) * | 2000-02-23 | 2001-08-30 | Nkt Cables A/S | An insulating cable connection |
EP3128630A1 (de) * | 2015-08-04 | 2017-02-08 | Nexans | Verfahren zur elektrischen trennung der metallischen ummantelung eines hvdc-mi-kabels |
WO2017021100A1 (en) * | 2015-08-04 | 2017-02-09 | Nexans | Method for electrical separation of the metallic sheath a hvdc mi cable |
Also Published As
Publication number | Publication date |
---|---|
DK166182C (da) | 1993-08-09 |
NO874258L (no) | 1989-04-14 |
JPH0667085B2 (ja) | 1994-08-24 |
DK568388A (da) | 1989-04-14 |
ES2049759T3 (es) | 1994-05-01 |
NO874258D0 (no) | 1987-10-13 |
ATE102760T1 (de) | 1994-03-15 |
EP0312424A3 (en) | 1990-10-24 |
NO165007C (no) | 1990-12-05 |
DK568388D0 (da) | 1988-10-12 |
DE3888280T2 (de) | 1994-12-01 |
NO165007B (no) | 1990-08-27 |
US4855536A (en) | 1989-08-08 |
EP0312424B1 (de) | 1994-03-09 |
DK166182B (da) | 1993-03-15 |
KR890007466A (ko) | 1989-06-20 |
JPH01164211A (ja) | 1989-06-28 |
KR970005285B1 (ko) | 1997-04-15 |
DE3888280D1 (de) | 1994-04-14 |
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